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Laser micromachining of heat-sensitive polymers using a femtosecond, high power and high energy laser

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Laser micromachining of heat-sensitive polymers using a femtosecond, high power and high energy laser

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Laser processing of heat sensitive polymers is finding wide use in various manufacturing sectors such as medical device and organic LED manufacturing. For example, heat sensitive, bio-absorbable polymers are increasingly used for production of bio-degradable stents. Because of the low melting temperature (usually below 200° C) of bio-absorbable polymers, any heat load to the surrounding areas during processing should be minimized. Therefore, using femtosecond (fs) pulsed lasers for micromachining of bio-absorbable polymers is highly promising due to the non-thermal nature of laser-material coupling and the possibility of structuring very small, micron-scale features.

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